Monotheism, the covenant,the teaching of Abraham, Moses and other prophet influence Jesus message was example of religious influence of Judaism. They believed on existence of only one God.According to Judaism monotheism was straight forward but different religion interpret it in different ways.
I think that the only right option is c. Workers had easier jobs and shorter hours. It caused lower quality of production
They operate, maintain or repair geothermal power plants and commercial and residential geothermal heating installations. (googled this for you)